最近很多安卓(Android)设备都开始去掉3.5mm耳机孔(headphone jack)了。这迫使用户切换到蓝牙(Bluetooth)耳机。蓝牙(Bluetooth)耳机或耳塞并不是什么新鲜事。他们已经存在了很长时间。然而，它们并没有像今天这样广泛使用。
尽管悬垂的电线缠在一起很麻烦，但人们还是喜欢有线耳机，而且他们仍然喜欢。这背后有很多原因，比如不需要充电、担心电池耗尽以及在很多情况下音质更好。多年来，蓝牙(Bluetooth)耳机有了很大的改进，几乎弥补了音频质量方面的差距。但是，仍然存在某些问题，并且这些耳机的低音量是常见的抱怨。在本文中，我们将讨论各种主题，以帮助我们了解移动品牌为何取消 3.5 毫米插孔，以及在切换到蓝牙(Bluetooth)时您可以期待什么。我们还将讨论低音量的问题并提供帮助(volume and help)你来解决问题。
修复 Android 上的低蓝牙音量(Fix Low Bluetooth Volume on Android)
为什么手机品牌要放弃 3.5mm 耳机插孔？(Why are mobile brands getting rid of the 3.5mm Headphone Jack?)
当务之急是让智能手机更纤薄、更时尚。因此，各种智能手机品牌都在尝试各种手段来缩小智能手机的尺寸。早些时候(Earlier)，Android智能手机使用USB B 型(USB type B)给设备充电，但现在它们已升级为USB C 型。C 型(USB type C. One)最有趣的功能之一是它支持音频输出(audio output)。因此，一个端口现在可以用于多种用途。它甚至不是质量上的妥协，因为 C 型产生了高清质量的(HD quality) 音频输出(audio output)。这为移除 3.5 毫米插孔提供了动力，因为它还可以让智能手机更加纤薄。
为什么选择蓝牙耳机，你能期待什么？(Why Bluetooth Headphones and what can you expect?)
现在，为了使用C 型端口(C port)连接您的有线耳机，您需要一根 C 型转 3.5 毫米音频适配器电缆(adapter cable)。除此之外，您将无法在为手机充电时听音乐。避免所有这些并发症的更好选择是改用蓝牙(Bluetooth)耳机。自从 3.5 毫米插孔在Android智能手机中开始过时以来，许多Android用户也开始这样做。
使用蓝牙耳机(Bluetooth headset)有其优点和缺点。一方面，它是无线的，因此非常舒适。您可以告别不断缠结的绳索，忘记为解开它们而必须付出的所有努力。另一方面，蓝牙耳机(Bluetooth headset)是电池供电的，因此需要不时充电。与有线耳机相比，音频质量略低。它也有点贵。
蓝牙设备音量低的问题及解决方法(The Problem of Low Volume on Bluetooth Devices and How to Fix it)
前面提到过，蓝牙耳机(Bluetooth headset)在安卓(Android)上存在音量低的问题。这是因为Android对蓝牙(Bluetooth)设备最大音量的限制非常低。这是一项安全措施(safety measure)，旨在保护我们在未来免受听力问题的影响。除此之外，新的Android版本，即Android 7 ( Nougat ) 及更高版本已经删除了蓝牙(Bluetooth)设备的单独音量控制(volume control)滑块。这可以防止您将音量增加到设备可能达到的实际最大限制。(maximum limit)在新的安卓(Android)系统中，设备音量(device volume)和蓝牙耳机(Bluetooth headset)音量只有一个音量控制(volume control)。
然而，有一个解决这个问题的方法。您唯一需要做的就是禁用蓝牙(Bluetooth)设备的绝对音量控制(volume control)。为此，您需要访问开发人员(Developer)选项。
请按照以下步骤解锁开发者(Developer)选项：
1.首先，打开手机上的设置。(Settings)现在单击系统(System)选项。
2. 之后选择关于手机(About phone)选项。
3. 现在您将能够看到名为Build Number的东西；继续点击它，直到您看到屏幕上弹出消息说您现在是开发人员。通常，您需要点击 6-7 次才能成为开发人员。
在屏幕上显示“您现在是开发人员”(“You are now a developer”)消息后，您将能够从“设置”访问“(Settings)开发人员(Developer)”选项。
现在，按照以下步骤禁用绝对音量控制(volume control)：
1. 进入手机设置(Settings)。打开系统(System)选项卡。
2. 现在点击开发者(Developer)选项。
3. 向下滚动到网络部分(Networking section)并关闭蓝牙绝对音量开关(toggle off the switch for Bluetooth absolute volume)。
4. 之后，重新启动您的设备以应用更改(restart your device to apply the changes)。设备再次启动后，连接蓝牙耳机(connect the Bluetooth headset)，当音量滑块(volume slider)设置为最大时，您会注意到音量显着增加。
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好了，至此，我们到了本文的结尾。我们希望您现在能够解决蓝牙耳机音量低的问题，(resolve the problem of low volume on your Bluetooth headset)并在从有线耳机切换到无线耳机后最终得到满意。
Fix Low Bluetooth Volume on Android
Recently a lot of Android devices have started to get rid of the 3.5mm headphоne jack. This has forced the users to switсh to Bluetooth headsets. Bluetooth heаdphones or earphonеs are nоthing new. They have been around for a very long time. However, they weren’t so widely used as they are today.
Despite the hassle of the dangling wires getting tangled up, people had a thing for wired headphones and they still do. There are a number of reasons behind that like no need for recharging them, worry about the battery running out, and in a lot of cases better sound quality. Bluetooth headsets have improved a lot over the years and have almost bridged the gap in terms of audio quality. However, there are still certain issues that remain and low volume on these headsets is a common complaint. In this article, we are going to discuss a variety of topics that would help us understand why mobile brands are doing away with the 3.5mm jack and what are the things you can expect when switching to Bluetooth. We will also discuss the problem of low volume and help you to fix the problem.
Fix Low Bluetooth Volume on Android
Why are mobile brands getting rid of the 3.5mm Headphone Jack?
The need of the hour is to make smartphones slimmer and sleeker. Various smartphone brands are thus, trying various means to reduce the size the smartphones. Earlier, Android smartphones used USB type B to charge the devices but now they have upgraded to USB type C. One of the most interesting features of type C is that it supports audio output. As a result, a single port could now be used for multiple purposes. It wasn’t even a compromise in quality as type C generates HD quality audio output. This provided the incentive to remove the 3.5mm jack as it would also allow slimming down smartphones even more.
Why Bluetooth Headphones and what can you expect?
Now, in order to use the type C port to connect your wired headphones, you will need a type C to 3.5mm audio adapter cable. Apart from that, you will not be able to listen to music while charging your phone. A better alternative to avoid all these complications would be to switch to Bluetooth headsets. Ever since the 3.5mm jack started getting obsolete in Android smartphones, a lot of Android users have started to do the same.
Using a Bluetooth headset has its own pros and cons. On one side, it is wireless and hence very comfortable. You can say goodbye to your cords that constantly get tangled and forget all the struggles that you had to make to untangle them. On the other hand, Bluetooth headsets are battery operated and thus need to be charged from time to time. The audio quality is a little low in comparison to wired headphones. It is also a little expensive.
The Problem of Low Volume on Bluetooth Devices and How to Fix it
As mentioned earlier, Bluetooth headsets have a problem with low volume on Android. This is because Android’s limit for maximum volume on Bluetooth devices is quite low. It is a safety measure put in place to protect us from hearing problems in the future. Apart from that the new Android versions, i.e. Android 7 (Nougat) and above have removed separate volume control sliders for Bluetooth devices. This prevents you from increasing the volume to the actual maximum limit that can be possibly attained by the device. In the new Android systems, there is a single volume control for the device volume and the Bluetooth headset volume.
There is, however, a solution to this problem. The only thing that you need to do is disable absolute volume control for Bluetooth devices. In order to do this, you need to access the Developer options.
Follow the steps given below to unlock Developer options:
1. Firstly, open the Settings on your phone. Now click on the System option.
2. After that select the About phone option.
3. Now you will be able to see something called Build Number; keep tapping on it until you see the message pop up on your screen that says you are now a developer. Usually, you need to tap 6-7 times to become a developer.
Once you get the message “You are now a developer” displayed on your screen, you will be able to access the Developer options from the Settings.
Now, follow the steps given below to disable absolute volume control:
1. Go to the Settings of your phone. Open the System tab.
2. Now click on the Developer options.
3. Scroll down to the Networking section and toggle off the switch for Bluetooth absolute volume.
4. After that, restart your device to apply the changes. Once the device starts again, connect the Bluetooth headset and you will notice a significant increase in the volume when the volume slider is set to maximum.
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Well, with that, we come to the end of this article. We hope that you will now be able to resolve the problem of low volume on your Bluetooth headset and finally be satisfied after making the switch from wired headsets to wireless ones.
